English verb conjugation
COULD STYMY

Regular verb: stymy - stymied - stymied

Affirmation

Simple form	V-ing form
I could stymy you could stymy he could stymy we could stymy you could stymy they could stymy	I could be stymying you could be stymying he could be stymying we could be stymying you could be stymying they could be stymying
Perfect	V-ing perfect
I could have stymied you could have stymied he could have stymied we could have stymied you could have stymied they could have stymied	I could have been stymying you could have been stymying he could have been stymying we could have been stymying you could have been stymying they could have been stymying

Negation

Simple form	V-ing form
I could not stymy you could not stymy he could not stymy we could not stymy you could not stymy they could not stymy	I could not be stymying you could not be stymying he could not be stymying we could not be stymying you could not be stymying they could not be stymying
Perfect	V-ing perfect
I could not have stymied you could not have stymied he could not have stymied we could not have stymied you could not have stymied they could not have stymied	I could not have been stymying you could not have been stymying he could not have been stymying we could not have been stymying you could not have been stymying they could not have been stymying

Interrogative form

Simple form	V-ing form
could I stymy? could you stymy? could he stymy? could we stymy? could you stymy? could they stymy?	could I be stymying? could you be stymying? could he be stymying? could we be stymying? could you be stymying? could they be stymying?
Perfect	V-ing perfect
could I have stymied? could you have stymied? could he have stymied? could we have stymied? could you have stymied? could they have stymied?	could I have been stymying? could you have been stymying? could he have been stymying? could we have been stymying? could you have been stymying? could they have been stymying?

Interro-negative form

Simple form	V-ing form
could I not stymy? could you not stymy? could he not stymy? could we not stymy? could you not stymy? could they not stymy?	could I not be stymying? could you not be stymying? could he not be stymying? could we not be stymying? could you not be stymying? could they not be stymying?
Perfect	V-ing perfect
could I not have stymied? could you not have stymied? could he not have stymied? could we not have stymied? could you not have stymied? could they not have stymied?	could I not have been stymying? could you not have been stymying? could he not have been stymying? could we not have been stymying? could you not have been stymying? could they not have been stymying?